Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Henriques, Vera B."'
Autor:
Henriques, Vera B., Salinas, S. R.
In a pioneer work, John Nagle has shown that an Ising chain with competing short and long-range interactions displays second and first-order phase transitions separated by a tricritical point. More recently, it has been claimed that Nagle's model pro
Externí odkaz:
http://arxiv.org/abs/1508.03543
Autor:
Henriques, Vera B., Salinas, Silvio R.
The equivalence of thermodynamic results in the canonical and the microcanonical ensembles has been questioned in some calculations for spin models with long-range interactions. We show that these claims of inequivalence are related to an inadequate
Externí odkaz:
http://arxiv.org/abs/1501.04029
Autor:
Guidi, Henrique S., Henriques, Vera B.
Lipid monolayers and bilayers have been used as experimental models for the investigation of membrane thermal transitions. The main transition takes place near ambient temperatures for several lipids and reflects the order-disorder transition of lipi
Externí odkaz:
http://arxiv.org/abs/1311.4812
We address the investigation of the solvation properties of the minimal orientational model for water, originally proposed by Bell and Lavis. The model presents two liquid phases separated by a critical line. The difference between the two phases is
Externí odkaz:
http://arxiv.org/abs/1207.1905
In this paper we investigate the solubility of a hard - sphere gas in a solvent modeled as an associating lattice gas (ALG). The solution phase diagram for solute at 5% is compared with the phase diagram of the original solute free model. Model prope
Externí odkaz:
http://arxiv.org/abs/1205.1983
In this paper we investigate the dynamic properties of the minimal Bell-Lavis (BL) water model and their relation to the thermodynamic anomalies. The Bell-Lavis model is defined on a triangular lattice in which water molecules are represented by part
Externí odkaz:
http://arxiv.org/abs/1006.1291
The Bell-Lavis model for liquid water is investigated through numerical simulations. The lattice-gas model on a triangular lattice presents orientational states and is known to present a highly bonded low density phase and a loosely bonded high densi
Externí odkaz:
http://arxiv.org/abs/0907.1868
We investigate the phase diagram of a three-dimensional associating gas $(ALG)$ model. This model combines orientational ice-like interactions and ``van der Waals'' that might be repulsive, representing, in this case, a penalty for distortion of hydr
Externí odkaz:
http://arxiv.org/abs/cond-mat/0612232
We have investigated the effects of either distorting hydrogen bonds or removing proton degeneracy on the thermodynamic properties of a minimal model for associating liquids. The presence of two liquid phases and a density anomaly is unaffected in bo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609542
Autor:
Henriques, Vera B., Guisoni, Nara, Barbosa, Marco Aurelio, Thielo, Marcelo, Barbosa, Marcia C.
We analyze the possible phase diagrams of a simple model for an associating liquid proposed previously. Our two-dimensional lattice model combines oreintati onal ice-like interactions and \"{}Van der Waals\"{} interactions which may be repulsive, and
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506367